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Audi
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1999
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A8 Sedan (4D2) V8-3.7L (AEW)
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Repair and Diagnosis
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Specifications
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Pressure, Vacuum and Temperature Specifications
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Fuel Pressure Regulator
Fuel Pressure Regulator
Engine Code
ABZ/AEW
Fuel system pressure at idle
Vacuum hose for pressure regulator:
Connected
approx.
3.6 bar(52 psi)
Disconnected
approx.
4.2 bar (61 psi)
Residual
fuel pressure
(After 10 min.
)
At least
3.0 bar (44 psi)